Location: Ruined Era
Boss: The Mountain Beneath
Required Key: Lightless Arbor Key
Dungeon Ability: Burning Amber
Tiers/Recommended Traveler Level:
- Tier 1: Level 20
- Tier 2: Level 65 (Unlocks at Level 55)
- Tier 3: Level 88
- Tier 4: Level 100
Unique Mechanic:
- Value of Uncertain Fate (Gold Sink)
- Maximum number of modifiers
- Tier 1: 8
- Tier 2: 9
- Tier 3: 10
- Tier 4: 11